BRANCH_SELECTOR: added a new branch selector

functions/branch_selection.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+# Fetch branches from GitHub API
+branches=$(curl -s https://api.github.com/repos/XargonWan/RetroDECK/branches | grep '"name":' | awk -F '"' '{print $4}')
+
+# Create an array to store branch names
+branch_array=()
+
+# Loop through each branch and add it to the array
+while IFS= read -r branch; do
+    branch_array+=("$branch")
+done <<< "$branches"
+
+# Display branches in a Zenity list dialog
+selected_branch=$(zenity --list --title="Select Branch" --column="Branch" "${branch_array[@]}")
+
+# Output selected branch
+echo "Selected branch: $selected_branch"